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Rights Statements InC/1.0 , Open Access
Journal article
Gold Coated Tungsten Tips for Scanning Tunneling Microscopy
Review of scientific instruments, Vol.64, pp.1495-1501
1993
Handle:
https://hdl.handle.net/2376/16879
Abstract
Electrochemically etched tungsten scanning tunneling microscope (STM) tips are dc sputter coated with 20 nm of gold (0.04 rim/s and 10 mTorr of argon). Transmission electron microscope (TEM) images of typical etched tips and gold-coated etched tips are presented. The gold layer forms as a series of spherical sections having a mean height of 6.7 nm and mean width of 19.6 nm. STM images are reported for the uncoated W tips, and for gold-coated graphite after coating the tip with gold. We also provide scanning electron microscopy (SEM) and STM images of the surface of a thin CuTCNQ film. The STM image taken with a gold-coated W tip compares very well to the SEM image of the same sample. Gold coating provides a relatively inexpensive and easy way to produce chemically stable tips of well known electronic structure for use in ambient atmosphere STM studies of morphology (structures ) 10 nm) where atomic resolution is not required.
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Details
- Title
- Gold Coated Tungsten Tips for Scanning Tunneling Microscopy
- Creators
- Glenn A. Fried (Author)Xiao-Dong Wang (Author)K. W. Hipps (Author)
- Publication Details
- Review of scientific instruments, Vol.64, pp.1495-1501
- Academic Unit
- Mechanical and Materials Engineering, School of
- Identifiers
- 99900501904001842
- Copyright
- In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess
- Language
- English
- Resource Type
- Journal article